Insert grouping symbols in the expression so that it has a value of 2 14-22 divided 5=2

The triangles are similar. what is the value of x? show your work.

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

What is this inequality notation? t is less then or equal to 2